| slovo | definícia |
auxin
(encz) | auxin,auxin n: Zdeněk Brož |
auxin
(czen) | auxin,auxinn: Zdeněk Brož |
auxin
(gcide) | auxin \aux"in\ n.
1. a substance which, in small concentrations, promotes root
formation, bud growth, or certain other processes such as
fruit ripening or leaf drop in plants.
[WordNet 1.5 +PJC] |
auxin
(wn) | auxin
n 1: a plant hormone that promotes root formation and bud growth |
| | podobné slovo | definícia |
auxins
(gcide) | Hormone \Hor"mone\ (h[^o]r"m[=o]n), n. [From Gr. "orma`ein to
excite.]
1. (Physiological Chem.) A chemical substance formed in one
organ and carried in the circulation to another organ on
which it exerts a specific effect on cells at a distance
from the producing cells; thus, pituitary hormones
produced in the brain may have effects on cells in distant
parts of the body..
[Webster 1913 Suppl. +PJC]
2. (Physiological Chem.) a chemical substance, whether
natural or synthetic, that functions like a hormone in a
living organism. Thus, synthetic steroid hormones may be
more effective than their natural counterparts.
[PJC]
3. (Bot.) A substance that controls growth rate or
differentiation in plants; also called phytohormone. The
most well-known are the auxins that stimulate growth at
the growing tips of plants, and control root formation and
the dropping of leaves; and the gibberellins, which are
used in agriculture to promote plant growth.
[PJC] |
heteroauxin
(gcide) | indoleacetic acid \in"dole*a*cet"ic ac"id\ ([i^]n"d[=o]l), n.
(Chem., Bot.)
A plant hormone (C10H9NO2) recognized as the principle
growth regulator in higher plants; called also heteroauxin.
Abbreviated IAA. Chemically it is 1H-indole-3-acetic acid.
[PJC] |
auxinic
(wn) | auxinic
adj 1: relating to or containing auxins |
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